CRC Heavy Duty Pro Degreaser

[LeakySeals]

I bought this yesterday. Anybody use it? I'm a little gun-shy to use anything on the engine after Purple Power corroded aluminum under the hood.

CRC Heavy Duty Pro Degreaser

http://www.walmart.com/ip/CRC-Heavy-Duty-Pro-Degreaser/821986826

 

[nthach]

Looking at the SDS of the non-aerosol version of the CRC stuff vs. the Purple Power there's quite a bit of a difference. PP has 25% lye(Sodium Hydroxide) which explains why it corroded your aluminum. pH seems to be same but I would trust the CRC stuff. I've been using Simple Green HD(purple liquid) or WD-40 Specialist Water-Based Degreaser for my underhood cleaning. They aren't as caustic to Al as Purple Power/Super Clean and its clones.

http://docs.crcindustries.com/msds/5484.pdf
https://docs.wixstatic.com/ugd/14ad0e_342940d078d94505b11d1358c997718c.pdf

 

[krismoriah72]

I use LA totally awesome.. $1 does all that i ever want out of a degreaser.

 

[RDMgr]

I don't think the PP contains 25% NaOH. It contains 3-4% of a 25% NaOH solution or 0.75-1.0%. It is probably used to adjust pH for solubility and clarity which is a common practice is water based cleaner/degreasers.